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Third Grade (Grade 3) Biology Questions

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Grade 3 Botany
The movement of pollen from the male part of a flower to the female part is called
  1. germination.
  2. pollination.
  3. fruit.
  4. seedling.
Grade 3 Communities, Populations, and Ecosystems
A habitat includes both living and nonliving things.
  1. True
  2. False
Grade 3 Botany
A plant's leaves can help protect the plant from
  1. too much sunlight.
  2. being eaten by animals.
  3. blowing away.
  4. growing too big.
Grade 3 Botany
What plant parts make food and help plants balance the amount of water they take in?
  1. leaves
  2. roots
  3. stems
  4. flowers
Grade 3 Respiration, Digestion, and Excretion
The                 are the organs that help us breathe in air.
  1. kidneys
  2. lungs
  3. intestines
Grade 3 Adaptations and Behavior
Nocturnal animal movements are characteristic of a(n)
  1. grassland.
  2. forest.
  3. ocean.
  4. desert.
Grade 3 Botany
How does water travel through a plant?
  1. through the roots
  2. through the stem
  3. through the fruit
  4. both a and b
Grade 3 Botany
Plants release a gas called                , which all animals need to breathe and survive.
  1. oxygen
  2. leaves
  3. soil
Grade 3 Adaptations and Behavior
A(n)                 is a modified feature that helps a plant survive in the environment.
  1. change
  2. adaptation
  3. limb
Grade 3 Botany
                gives leaves their green color.
  1. Photosynthesis
  2. Carbon dioxide
  3. Oxygen
  4. Chlorophyll
Grade 3 Adaptations and Behavior
Thorns are an adaptation that
  1. helps the plant keep water inside the leaves.
  2. attracts pollinators.
  3. pokes animals that might try to eat the plant.
Grade 3 Biomes
The main plants in a                 ecosystem are trees.
  1. desert
  2. forest
  3. grassland
  4. water
Grade 3 Botany
Two types of roots are
  1. brown and red.
  2. long and short.
  3. deep and squiggly.
  4. taproots and fibrous.
Grade 3 Botany
What does the stem of a plant do to help the plant?
  1. grows fruit
  2. makes food
  3. takes in water
  4. holds up the plant
Grade 3 Biology
How do plants and animals differ?
  1. Animals need nutrients.
  2. Animals make their own food.
  3. Animals cannot make their own food.
  4. Plants need water.
Grade 3 Food Chains and Webs
A food chain shows the flow of energy using arrows. Which is a proper food chain?
  1. Sun -> producer -> carnivore -> omnivore -> decomposer
  2. decomposer -> carnivore -> omnivore -> producer -> Sun
  3. Sun -> producer -> herbivore -> carnivore -> decomposer
  4. herbivore -> Sun -> carnivore -> producer -> omnivore
Grade 3 Botany
What part of the plant collects sunlight?
  1. top of the leaf
  2. bottom of the leaf
  3. roots
  4. stems
Grade 3 Respiration, Digestion, and Excretion
When you exercise, your body needs more                , so you breathe faster.
  1. oxygen
  2. water
  3. carbon dioxide
  4. speed
Grade 3 Biomes
What does abiotic mean?
  1. living
  2. non-living
Grade 3 Conservation and Biodiversity
Instead of killing animals for their ivory or horns, we should
  1. make laws that protect them.
  2. create habitats where they are protected.
  3. both a and b
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